Churn.



No. 730,172. PATENTEDJUNE 2,1903.

' M. P. STILL- GHURN. APPLICATION FILED MAY 22, 1902.

10 MODEL. 2 SHEETS-#HEET 1.

. .w/r wfssmp V Y 1 53503 20 /%1 67 v l? By I i 7 ATTORNEYS.

Patented J'une 2, 1903.

' UNIT D STATES PATENT OFFICE.

MENTLEYIF. STILL, or LAPA NZA, CALIFORNIA.

CHURN SPECIFICATION forming part of Letters Patent No. 730,172, dated June 2, 1903.

Application filed May 22, 1902. Serial No.108i597. (No model.)

To all whom 2'23 may cancer? Be it known that I, MENTLEY F. STILL, of Lapanza, in the county of San Luis Obispo and State of Oalifornia,have invented a new and useful Improvementin Power-Chums, of which the following is a specification.

My invention relates to churns run by steam or other power and'of that type of churn-body in which the churn has no separate dasher or beater, but the churning is eifected by the oscillation or vibration of the churn-body itself.

My, invention consists in the novel construction and arrangement of the churnbody, its supporting-frame, and actuating mechanism, whereby a simple, economical, and compact powerchurn is provided in which the churn, the power mechanism, and frame are so combined as to constitute a single unitary organization, the parts being coordinated to and especially adapted for each other, as will be hereinafter more fully described with reference to the drawings, in which Figure 1 is a perspective view of the entire power-churn. Fig. 2 is an enlarged horizontal section of the engine-cylinder and its valves; and Fig. 3 is a detail perspectiveview-of the engine-cylinder,valve-gear, and connections, the view being taken from the opposite side to that seen'in Fig. 1.

In the drawings, Fig. 1,'AAA A represent an X-shaped frame made of gas-pipes connected at the center by four-way couplings a, of which frames there are two, one on each side, connected at their extremities by elbow-couplings a and cross-pipes A. Within this frame and completely inclosed by the same is an elongated rectangular box B, forming the churn-body, which is suspended upon loop-shapedstirrups or. hangers D, whose upper ends are provided with yokes d, that loosely embrace the cross-bars A inside of the elbow-couplings a, which latter hold the yokes in place. The hanger-loops D are arranged to inclose the churn-body, which thus hangs suspended from the yokes cl and is capable of oscillation about the points of suspension. The hangers, however, are not parallel and vertical, but are disposed at an. inclination toward each other at the bottom and are retained in this relation by boxes or the left.

bearings attached to the bottom of the churnbody. The object in having these hangers inclined in this manner is to cause one end of the churn-body to descend and the other end to rise as it moves to-the right and to reverse-these movements when it swings to This gives a more positive dash of the contents from one end of the churn to the other and SGOlTlIGS a much more rapid and effective churning ofthebutter.

It will be seen that by connecting the upper ends of the X-shaped' pipe-frames by means of cross-pipes Av and elbow-couplings a the two frames are connected together and braced by the samecross=pipes which carry the hangers, and as the elbow-couplings are of larger external diameter'than the crosspipessuch couplings form shoulders that keep the yokes of the hangers in place against slipping off. The two upper members of each X-shaped frame form the support for, the churn-body, and the two lower members of the X-shaped frames form the legs. r I y From the cross-pipes A A at one side of the main frame there are extended horizontal pipe-sections A by means of T-couplings a and these pipe-sections A connect with vertical pipe-sections A A by means of e1- bows a a Between, these vertical pipe-sections A A are detachablyconnected, by means of couplings R R, the pipe E and fourway casing E, in which latter is located and held a small horizontalengine-cylinder O. This cylinder is located a little below the levelof the churn-body B, and the piston-rod F is by red H connected to the bottom of the churn-body, so that the reciprocations of the valves with three-way ports. These valves its val ve-gear are arranged at opposite ends of a pipe M and open into opposite ends of the cylinders. These rotary valves have crank-arms K K outside their casings, which are connected by rod J and operated together by astem I, which in turn is acted upon by the ch urn-body with a tappet action, as seen in Fig. 1. The valvestem extends through a perforated projection Z on the bottom of the churn'body, and as this churn-body oscillates it strikes against cushioned lugs 0 0 on the valve-stem on each side of the projection Z and shifts the valvestem first in one direction and then in the other in order to reverse the ports of the valves L. The lugs 0 are cushioned with spiral springs to break the force of the blow. When the valves are in the position shown in Fig. 2, steam flows in' the direction of the arrows and the piston is moved to the right. When the position of the valve-cranks K and valves L is changed by the blow from the churn-body, the ports of the valves L are turned so as to reverse the flow of steam and the piston then moves to the left. M represents the steam-inlet pipe which enters the horizontal induction-pipe M-between the two valves, and N represents the steam-exhaust pipe.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A power-churn, comprising a supporting-frarne with hangers, a horizontal churnbody supported in said hangers within said frame and having a projection Z, a horizontally-disposed engine-cylinder with pistonrod, and pitman connecting the piston-rod to the churn-body, a valve-gear for the enginecylinder having a reciprocating rod for operating it, said reciprocating rod being arranged in line with the projection l of the churnbody and extending through the same and having lugs on opposite sides of said projection adapted to be struck by the said projection on the churn-body to cause the oscillation of the churn-body to impart motion to the valve-gears substantially as described.

2. A power-churn comprising a support ing-frame formed of four-way pipe-couplings a, X-shaped members A, A, A, A, cross members A with elbow-couplings a, hanger-bars D D suspended from the upper cross members A, a horizontally-disposed churn-body suspended in the hangers within the frame, the pipe extensions A A at one end of the frame having couplings a a the engine-cylinder O and its valve-gear, and supportingframe sections E E with detachable couplings R R, and means for connecting the engine to the churn substantially as described.

MENTLEY I STILL. Witnesses:

ABRAM A. STILL, MATTIE L. SELLERS. 

